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题名: Enhanced durability of sulfonated poly (ether ether ketones)-based polymer electrolyte membranes by a multi-layer composite technology
作者: Jiang, Yongyi1, 2;  Hou, Ming1;  Hao, Jinkai1, 2;  Yi, Baolian1;  Wang, Zhen1, 2;  Song, Wei1;  Shao, Zhigang1
关键词: Multi-layer composite membrane ;  Transition layer ;  Chemical degradation ;  Accelerated open circuit voltage tests ;  Durability
刊名: SOLID STATE IONICS
发表日期: 2017-10-15
DOI: 10.1016/j.ssi.2017.07.003
卷: 309, 页:33-40
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Condensed Matter
研究领域[WOS]: Chemistry ;  Physics
英文摘要: Multi-layer composite membrane with low-cost and high durability is prepared via hot-spraying methods for proton exchange membrane fuel cell (PEMFC) applications, which consists of a mid layer of sulfonated poly (ether ether ketones) (SPEEK), two transition layers (TLs) and two PFSA outer layers (PLs). Here, PLs can protect SPEEK membrane against the chemical degradation from reactive oxygen species and endow the composite membrane with high chemical stability. TLs improve the interfacial compatibility between SPEEK membrane and PLs, avoiding the delamination problem. This multi-layer composite membrane exhibits a proper ion-exchange capacity (IEC) and higher proton conductivity compared with that of SPEEK membrane, and it also keeps a balance between water uptake and swelling ratio owing to the presence of the multi-layer structure. Besides, the lower cost of the composite membrane is confirmed due to the small content of Nafion. Single cell tests indicate that the multi-layer composite membrane has better cell performance than that of SPEEK membrane. The higher durability for the membrane under accelerated open circuit voltage (OCV) tests reveals the effectiveness of this multi-layer composite strategy in improving the chemical durability of the SPEEK membrane.
关键词[WOS]: PROTON-EXCHANGE MEMBRANES ;  FUEL-CELL APPLICATIONS ;  LINKED POLY(VINYL ALCOHOL) ;  DEGRADATION MITIGATION ;  GRAPHENE OXIDE ;  SEMIINTERPENETRATING NETWORK ;  NANOCOMPOSITE MEMBRANES ;  HYBRID MEMBRANES ;  ACID MEMBRANE ;  CERIUM OXIDE
语种: 英语
WOS记录号: WOS:000412266100006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/150157
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Div Fuel Cell & Battery, Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China

Recommended Citation:
Jiang, Yongyi,Hou, Ming,Hao, Jinkai,et al. Enhanced durability of sulfonated poly (ether ether ketones)-based polymer electrolyte membranes by a multi-layer composite technology[J]. SOLID STATE IONICS,2017,309:33-40.
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